参数资料
型号: SG6846BCSZ
厂商: Fairchild Semiconductor
文件页数: 8/15页
文件大小: 0K
描述: IC CTRLR PWM PROG OVP OTP 8SOP
标准包装: 2,500
输出隔离: 隔离
频率范围: 44.8 ~ 136kHz
输入电压: 10.5 V ~ 30 V
输出电压: 18V
功率(瓦特): 400mW
工作温度: -40°C ~ 150°C
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOICN
包装: 带卷 (TR)
Electrical Characteristics (Continued)
V DD = 15V and T A = 25°C unless otherwise noted.
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
PWM Output Section
DCY MAX
Maximum Duty Cycle
80
85
90
%
V OL
V OH
t R
t F
V CLAMP
Output Voltage Low
Output Voltage High
Rising Time
Falling Time
Gate Output Clamping Voltage
V DD = 15V, I O = 50mA
V DD = 12V, I O = 50mA
GATE = 1nF
GATE = 1nF
V DD = 20V
8
350
50
1.5
18
V
V
ns
ns
V
Over-Temperature Protection (OTP) Section
(1)
I RT
V RTTH
Output Current of RT Pin
Threshold Voltage for OTP
R I = 26k ?
64
1.00
70
1.05
76
1.10
μA
V
SG6846BLSY or
SG6846BCSY,
100
ms
t DOTP-LATCH
Over-Temperature Latch-off Debounce
R I = 26k ? , V FB >V N
SG6846BLSZ or
SG6846BCSZ,
R I = 26k ? , V FB >V N
100
μs
R RT-OFF
Equivalent Impedance of RT for OTP
(1)
R I = 26k ?
14
15
16
k ?
R I Section
RI NOR
R I Operating Range
13
36
k ?
RI MAX
RI MIN
Maximum R I Value for Protection
Minimum R I Value for Protection
10
6
M ?
k ?
Note:
1. The relationship between R RT-OFF and R I is: R RT - OFF = V OTP - LATCH - OFF / I RT = V RT / (70 μ A × 26 / R I (K Ω ))
(1)
? 2008 Fairchild Semiconductor Corporation
SG6846B ? Rev. 1.3.4
8
www.fairchildsemi.com
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